331 Practical hints
Battery
Reconnecting the batteries
Turn off all electrical consumers.
Connect the positive lead and fasten its
cover 2.
Connect the negative lead 1.
Reinstall the filter box.Batteries contain materials that can harm
the environment if disposed of improperly.
Large 12-volt storage batteries contain
lead. Recycling of batteries is the preferred
method of disposal. Many states require
sellers of batteries to accept old batteries
for recycling.!NEVER invert the terminal connections.!The battery, its filler caps and the vent
tube must always be securely installed
when the vehicle is in operation.
iThe following procedures must be car-
ried out following any interruption of
battery power (e.g. due to reconnect-
ing):
Set the clock (
page 128) (vehi-
cles with COMAND*: see COMAND
operator’s manual).
Resynchronize the ESP
(page 294).
Resynchronize side windows
(page 189).
Resynchronize sliding/pop-up roof
(page 315).
